Derivative Instruments and Hedging Activities - Open Interest Rate Swap Contracts (Details) - USD ($) $ in Millions		Dec. 31, 2021	Dec. 31, 2020
Cash Flow Hedging | Interest Rate Swap, May 2018 To May 2021 [Member]
Derivative [Line Items]
Notional Amounts (in U.S. dollars)			$ 25.0
Net Unrealized Gain (Loss)			(0.2)
Cash Flow Hedging | Interest Rate Swap, September 2019 To September 2023 [Member]
Derivative [Line Items]
Notional Amounts (in U.S. dollars)		$ 150.0	150.0
Net Unrealized Gain (Loss)		(5.8)	(11.3)
Cash Flow Hedging | Interest Rate Swap, May 2019 To May 2020 [Member] [Member]
Derivative [Line Items]
Net Unrealized Gain (Loss)			(6.6)
Cash Flow Hedging | Interest Rate Swap
Derivative [Line Items]
Notional Amounts (in U.S. dollars)		550.0	575.0
Net Unrealized Gain (Loss)		(7.8)	(18.1)
Cash Flow Hedging | Interest Rate Swap, March 2020 To February 2023 [Member]
Derivative [Line Items]
Net Unrealized Gain (Loss)		(2.0)
Derivative, Notional Amount1		400.0	400.0
Designated as Hedging Instrument [Member]
Derivative [Line Items]
Net Unrealized Gain (Loss)		(5.7)	(20.4)
Designated as Hedging Instrument [Member] | Interest Rate Swap
Derivative [Line Items]
Net Unrealized Gain (Loss)	[1]	$ (7.8)	$ (18.1)

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